141021431 has 2 divisors, whose sum is σ = 141021432. Its totient is φ = 141021430.

The previous prime is 141021421. The next prime is 141021451. The reversal of 141021431 is 134120141.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141021431 is a prime.

It is a super-2 number, since 2×141021431² = 39774088002575522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141021421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70510715 + 70510716.

It is an arithmetic number, because the mean of its divisors is an integer number (70510716).

Almost surely, 2^141021431 is an apocalyptic number.

141021431 is a deficient number, since it is larger than the sum of its proper divisors (1).

141021431 is an equidigital number, since it uses as much as digits as its factorization.

141021431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 141021431 is about 11875.2444606416. The cubic root of 141021431 is about 520.5091549009.

Adding to 141021431 its reverse (134120141), we get a palindrome (275141572).

The spelling of 141021431 in words is "one hundred forty-one million, twenty-one thousand, four hundred thirty-one".